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抗战胜利后DDT在中国的应用
抗战胜利 DDT 双对氯苯基三氯乙烷
2024/4/7
20世纪30年代，DDT强大的杀虫功效被发现。抗战胜利后，DDT进入中国，在防疫和农业领域发挥了一定作用。在国民政府行政院善后救济总署和各大城市卫生部门的主导下，DDT被用于卫生防疫，一些地方当局在农业灾情严重时也曾使用过少量DDT，均取得了一定成效。由于DDT主要依靠进口，量少价高，且用法相对复杂，直至中华人民共和国成立前，其并未得到大规模应用。解放后，DDT一度成为最广泛使用的农药之一，但其危...
Scientists Discover More Effective,and Potentially Safer,Crystalized Form of DDT
Scientists More Effective Potentially Safer Crystalized DDT
2017/7/21
A team of scientists has discovered a new crystal form of DDT that is more effective against insects than the existing one. Its research, which appears in the journal Angewandte Chemie, points to the ...
2,4’-DDT对斑马鱼生长、繁殖力及卵黄蛋白原的影响
２，４ 滴滴涕 斑马鱼 卵黄蛋白原（Ｖｔｇ） 激素效应
2013/1/6
以斑马鱼体内卵黄蛋白原（Ｖｔｇ）作为雌激素污染物的生物标志物，比较研究了不同浓度２，４′ＤＤＴ对成年斑马鱼生长、发育、繁殖以及体内Ｖｔｇ含量的影响。结果表明，当水环境中ρ（２，４′ＤＤＴ）为２和１０μｇ·Ｌ－１时，斑马鱼产卵量和受精率与空白和溶剂对照组相比均显著下降（Ｐ＜００５）。当水环境中ρ（２，４′ＤＤＴ）为０２、２和１０μｇ·Ｌ－１时，斑马鱼肝脏指数与空白和溶剂对照组相比显著升高（Ｐ＜０...
2,4’-DDT对斑马鱼生长、繁殖力及卵黄蛋白原的影响
2,4′-滴滴涕 斑马鱼 卵黄蛋白原 激素效应
2013/8/13
以斑马鱼体内卵黄蛋白原（Vtg）作为雌激素污染物的生物标志物，比较研究了不同浓度2,4′-DDT对成年斑马鱼生长、发育、繁殖以及体内Vtg含量的影响。结果表明，当水环境中ρ（2,4′-DDT）为2和10 μg·L-1时，斑马鱼产卵量和受精率与空白和溶剂对照组相比均显著下降（P＜0.05）。当水环境中ρ（2,4′-DDT）为0.2、2和10 μg·L-1时，斑马鱼肝脏指数与空白和溶剂对照组相比显著升...
瞬态光谱法确定环氧丙烷DDT过程中起主导作用的基团
重要基团 瞬态光谱 DDT过程
2009/10/26
解决了燃料爆燃转爆轰(DDT)过程初始阶段弱辐射瞬态光谱测试问题、反应中间产物辐射相对强度定标问题和瞬态光谱测试系统同步控制问题后，从爆炸激波管的6个不同侧窗，拍摄了环氧丙烷DDT过程不同距离处的曝光时间为2～8 μs、分辨率达到0.2 nm的瞬态发射光谱。对所测光谱进行相对强度定标后，得到了主要反应中间产物光辐射强度随燃烧波阵面传播距离的变化曲线, 此曲线反映出DDT过程中反应中间产物的发展过程...
Impact of the regional climate and substance properties on the fate and atmospheric long-range transport of persistent organic pollutants - examples of DDT and γ-HCH
regional climate substance property atmospheric long-range transport persistent organic pollutants DDT γ-HCH
2009/1/6
A global multicompartment model which is based on a 3-D atmospheric general circulation model (ECHAM5) coupled to 2-D soil, vegetation and sea surface mixed layer reservoirs, is used to simulate the ...
Level of Lactate Dehydrogenase (LDH) in Resistant and Susceptible Strains of Culicine Mosquitoes of the Karachi Region after Treatment with DDT, Malathion and Cyfluthrin
Malathion Cyfluthrin DDT LDH Mosquito larvae
2010/3/30
The effects of Malathion, Cyfluthrin, and DDT were observed on the activity of lactate dehydrogenase (LDH) in susceptible and resistant strains of culicine mosquitoes. Biochemical estimation (colorime...
Quantitative Estimation of DDT by GLC in Different Strains of Musca domestica L. by Using Hexane as Well as Diethyl Ether
DDT GLC Musca domestica
2010/3/30
Estimation of DDT by GLC (gas liquid chromatography) in the PCSIR strain of Musca domestica L. Shows that 59.69 ng/fly DDT was found in the sample extracted with hexane and 55.74 ng/fly in the sample ...